OBD Guide
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B1160

Gauge Control Module Lost Communication With Door Multiplex Control Unit

B1160 is an OBD-II diagnostic trouble code meaning: Gauge Control Module Lost Communication With Door Multiplex Control Unit . Common causes: broken or damaged wiring harness, faulty instrument panel control module. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect dashboard readings
  • Power window failure
  • Lack of backlighting of door control buttons

Causes

  • Broken or damaged wiring harness
  • Faulty instrument panel control module
  • Malfunction of the door control unit
  • Power or grounding problems

How to Fix

  1. Check the integrity of the wiring harness between the modules
  2. Check power and grounding of both modules
  3. Scan modules for additional errors
  4. If necessary, replace the faulty module or wiring harness

Related codes

B1161B1162U1000

FAQ

What does the B1160 code mean?

B1160 is an OBD-II diagnostic trouble code that indicates: Gauge Control Module Lost Communication With Door Multiplex Control Unit

What causes a B1160 error code?

The most common causes of B1160 include: Broken or damaged wiring harness; Faulty instrument panel control module; Malfunction of the door control unit; Power or grounding problems.

How do I fix a B1160 diagnostic trouble code?

To fix B1160: Check the integrity of the wiring harness between the modules. Check power and grounding of both modules. Scan modules for additional errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1160?

Limited driving only, diagnose soon

How much does it cost to fix B1160?

The estimated repair cost for B1160 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat